Another month, another carbon dioxide record. This time the record extends beyond the rocky slopes of Mauna Loa, Hawaii, home to the most storied carbon dioxide record, and includes 39 other sites around the globe to paint a troubling picture of a greenhouse gas rise with no signs of slowing down. For the first time since record keeping began

It’s official, the concentration of heat-trapping carbon dioxide (CO2) in the atmosphere was higher than 400 parts per million (ppm) for the entire month of February, on average. This definitive measurement comes from the Mauna Loa Observatory, which has been monitoring CO2 continuously since 1958. The saw-tooth pattern indicates the annual

It’s official, the concentration of heat-trapping carbon dioxide (CO2) in the atmosphere was higher than 400 parts per million (ppm) for the entire month of February, on average. This definitive measurement comes from the Mauna Loa Observatory, which has been monitoring CO2 continuously since 1958. This is the earliest in the calendar year we’ve

If the folks at Guinness World Records kept tabs on climate change, they’d be taking note that the planet has hit a milestone: levels of heat-trapping carbon dioxide in the atmosphere have averaged more than 400 parts per million each day for the entire month of April. That’s the first time this has happened in at least 800,000 years — and maybe